ruby-on-rails - Ruby on Rails 教程 - 出现错误，让我抓狂

Question

我正在遵循 [Michael Hartl 的教程][1] 并完成第 7 章中的练习，现在有 4 个错误，我无法弄清楚如何修复我的一生。当我手动测试生产应用程序时，错误根本不存在。所以我不知道我的文本开发是否有问题或者其他什么问题，但我完全不知所措，所以我想我应该在这里发帖，看看我的完全菜鸟是否让我蒙蔽了……感谢您的帮助!

这是我收到的 4 条错误消息:

Failures:

  1) signup with invalid information after submission 
     Failure/Error: it { should have_selector('title', text: "Sign up") }
       expected css "title" with text "Sign up" to return something
     # ./spec/requests/user_pages_spec.rb:38:in `block (4 levels) in <top (required)>'

  2) signup with invalid information after submission 
     Failure/Error: it { should have_content('error') }
       expected there to be content "error" in "after submission"
     # ./spec/requests/user_pages_spec.rb:39:in `block (4 levels) in <top (required)>'

  3) signup after saving the user 
     Failure/Error: it { should have_selector('title', text: user.name) }
     NoMethodError:
       undefined method `name' for nil:NilClass
     # ./spec/requests/user_pages_spec.rb:60:in `block (3 levels) in <top (required)>'

  4) signup after saving the user 
     Failure/Error: it { should have_selector('div.alert.alert-success', text: 'Welcome') }
       expected css "div.alert.alert-success" with text "Welcome" to return something
     # ./spec/requests/user_pages_spec.rb:61:in `block (3 levels) in <top (required)>'

Finished in 6.8 seconds
10 examples, 4 failures

Failed examples:

rspec ./spec/requests/user_pages_spec.rb:38 # signup with invalid information after submission 
rspec ./spec/requests/user_pages_spec.rb:39 # signup with invalid information after submission 
rspec ./spec/requests/user_pages_spec.rb:60 # signup after saving the user 
rspec ./spec/requests/user_pages_spec.rb:61 # signup after saving the user 

这是我的 user_pages_spec.rb 上的代码:

require 'spec_helper'

    require 'spec_helper'

    describe "User pages" do

      subject { page }

      describe "signup page" do
        before { visit signup_path }

        it { should have_selector('h1',    text: 'Sign up') }
        it { should have_selector('title', text: full_title('Sign up')) }
      end

      describe "profile page" do
      let(:user) { FactoryGirl.create(:user) }
      before { visit user_path(user) }

      it { should have_selector('h1',    text: user.name) }
      it { should have_selector('title', text: user.name) }
    end
    end

      describe "signup" do

        before { visit signup_path }

        let(:submit) { "Create my account" }

        describe "with invalid information" do
          it "should not create a user" do
            expect { click_button submit }.not_to change(User, :count)
          end


            describe "after submission" do
              before { click_button submit }

              it { should have_selector('title', text: "Sign up") }
              it { should have_content('error') }
            end
        end

        describe "with valid information" do
          before do
            fill_in "Name",         with: "Example User"
            fill_in "Email",        with: "<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="92e7e1f7e0d2f7eaf3ffe2fef7bcf1fdff" rel="noreferrer noopener nofollow">[email protected]</a>"
            fill_in "Password",     with: "foobar"
            fill_in "Confirmation", with: "foobar"
          end

          it "should create a user" do
            expect { click_button submit }.to change(User, :count).by(1)
          end
        end

          describe "after saving the user" do
          before { click_button submit }
          let(:user) { User.find_by_email('<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="522721372012372a333f223e377c313d3f" rel="noreferrer noopener nofollow">[email protected]</a>') }

          it { should have_selector('title', text: user.name) }
          it { should have_selector('div.alert.alert-success', text: 'Welcome') }
        end
      end


  [1]: http://ruby.railstutorial.org/

这是views/users/show.html.erb的模板代码

<% provide(:title, @user.name) %>
<div class="row">
  <aside class="span4">
    <section>
      <h1>
        <%= gravatar_for @user %>
        <%= @user.name %>

      </h1>
    </section>
  </aside>
</div>

然后这是 users_controller.rb

class UsersController < ApplicationController

  def show
    @user = User.find(params[:id])
  end

  def new
    @user = User.new
  end

 def create
    @user = User.new(params[:user])
    if @user.save
      sign_in @user
      flash[:success] = "Welcome to the Sample App!"
      redirect_to @user
    else
      render 'new'
    end
  end

end

Answer 1

大家好，

我不知道不回答我的问题对于这个论坛的菜鸟来说是否是某种折磨人的开始，但经过近 24 小时和一夜好眠后，我解决了问题!

经过几次 G 搜索后，我发现可以通过在错误的位置使用“end”来阻止某些变量传递。事实证明，我主要在两个领域做这件事。一旦我找到并修复了这些问题，所有错误都消失了。

我现在要拍拍自己的背。我希望这对将来遇到同样问题的新手有所帮助。